2011 Fiscal Year Final Research Report
Electronic and magnetic control of the Kondo effect and interference effects in metal quantum structures
| Project/Area Number |
21510110
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nanostructural science
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
UCHIHASHI Takashi 独立行政法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA研究者 (90354331)
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| Project Period (FY) |
2009 – 2011
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| Keywords | ナノ構造物性 |
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| Research Abstract |
We have studied quantum well structures such as metal multi-layers and wire-like metal structures, by which the Kondo effect can be modulated and controlled. For metal multi-layers, we have found that the energy levels of quantum well states change systematically as a function of the width of the quantum well, and that the Kondo temperature and Fano's asymmetric parameter changes in accordance with it. We have also studied in detailed striped noble-metal film as a candidate for a wire-like metal structure. They were fabricated using a one-dimensional silicon surface reconstruction as a template. It was revealed that, due to the stacking fault arrays present in the striped film, the electrons in surface states are strongly confined and forms one-dimensional electronic states.
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